DTC C1781: Suspension Control ECU Malfunction: Procedure
- CHECK DTC
- Clear the DTC. Refer to DTC CHECK / CLEAR .
- Perform a road test.
- Check for DTC. Refer to DTC CHECK / CLEAR
.RESULT
Result Proceed to DTC is output A DTC is not output B
B → See step 3
A → See step 2
- REPLACE SUSPENSION CONTROL ECU. Refer to REMOVAL
- USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING